Studies of rhythmic bimanual coordination under dual-task conditions revealed (1) a dependence of secondary task performance on the stability of coordinative tasks, in that secondary task performance was better during in-phase than antiphase coordination, and (2) a shift in the mean relative phasing between the limbs compared to single-task…

The present study investigated the impact of reinforcement valence and magnitude on response timing in children with ADHD. Children were required to estimate a 1-s interval, and both the median response time (response tendency) and the intrasubject-variability (response stability) were investigated. In addition, heart rate and skin conductance…

The conflict monitoring model of M. M. Botvinick, T. S. Braver, D. M. Barch, C. S. Carter, and J. D. Cohen (2001) triggered several research programs investigating various aspects of cognitive control. One problematic aspect of the Botvinick et al. model is that there is no clear account of how the cognitive system knows where to intervene when…

Change of first language (L1) status from the most stable language to a less accessible language over the life-span of a bilingual individual is termed "language attrition". Such a shift in ease of L1 access has been reported to affect the lexicon (Pelc, 2001) more than other aspects of language. However, whether L1 attrition is affected by…

Pressure exists to attract and retain students in higher education. Online educational programs have the potential to increase the number of students who can enroll in degree-bearing institutions. Explored in the qualitative study using a modified three-round Delphi technique was the phenomenon of consistently lower student retention rates in…

Neighborhood density influences adult performance on several word processing tasks. Some studies show age-related effects of density on children's performance, reflecting a developmental restructuring of the mental lexicon from holistic into segmental representations that may play a role in phonological awareness. To further investigate density…

The Sustained Attention to Response task is a classical neuropsychological test that has been used by many centres to characterize the attentional deficits in traumatic brain injury, ADHD, autism and other disorders. During the SART a random series of digits 1-9 is presented repeatedly and subjects have to respond to each digit (go trial) except…

The lack of consistency in how bilingual language dominance is assessed currently impedes cross-experiment comparisons (Grosjean, 1998). We present a paper-and-pencil dominance scale that can be used to quantify the language dominancy of bilingual participants. The scale targets three main criteria important in gauging dominance (Grosjean, 1998;…

Background: There is a great deal of evidence to support the robust relationship between phonological awareness and literacy development. Researchers are beginning to understand the relationship between the accuracy and distinctiveness of stored phonological representations and performance on phonological awareness tasks. However, many of the…

The 13th iteration of the International Conference on Educational Data Mining (EDM 2020) was originally arranged to take place in Ifrane, Morocco. Due to the SARS-CoV-2 (coronavirus) epidemic, EDM 2020, as well as most other academic conferences in 2020, had to be changed to a purely online format. To facilitate efficient transmission of…

Investigates causes of reaction time slowing with age. (DP)

Kohler (1929) reported anecdotally that, when asked to choose, subjects were much more likely to attach the name 'takete' to a spiky abstract object, and the name 'baluma' (or, by 1947, 'maluma') to a curvy abstract object. Follow-up work has suffered from the same three weaknesses as Kohler's original anecdotal study: a reliance on small number…

Two studies investigated technical aspects of a computer-mediated test, the Computerized Oral Proficiency Instrument (COPI), particularly in contrast to a similar tape-mediated test, the Simulated Oral Proficiency Interview (SOPI). The first study investigated how examinees used self-assessment to choose an appropriate starting level on the COPI.…

Inhibition is a widely used notion proposed to account for data obtained in choice reaction time (RT) tasks. However, this concept is weakly supported by empirical facts. In this paper, we review a series of experiments using Hoffman reflex, transcranial magnetic stimulation and electroencephalography to study inhibition in choice RT tasks. We…

The aim of this study was to examine the effects of frequency of occurrence of stop signals in the stop-signal paradigm. Presenting stop signals less frequently resulted in faster reaction times to the go stimulus and a lower probability of inhibition. Also, go stimuli elicited larger and somewhat earlier P3 responses when stop signals occurred…